Brazilian Journal of Physics最新文献

筛选
英文 中文
Linear and Nonlinear Optical Refractive Index Changes of Quantum Rings in the Kratzer Potential 克拉泽势中量子环线性和非线性光学折射率的变化
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-20 DOI: 10.1007/s13538-025-01845-3
Yueqing Zhang, Xuechao Li, Yawen Cai, Xiaolong Yan, Xinyu Li
{"title":"Linear and Nonlinear Optical Refractive Index Changes of Quantum Rings in the Kratzer Potential","authors":"Yueqing Zhang,&nbsp;Xuechao Li,&nbsp;Yawen Cai,&nbsp;Xiaolong Yan,&nbsp;Xinyu Li","doi":"10.1007/s13538-025-01845-3","DOIUrl":"10.1007/s13538-025-01845-3","url":null,"abstract":"<div><p>In this paper, we theoretically investigate the refractive index changes of quantum rings with a Kratzer potential for inter-subband transition. The corresponding wave functions and energy levels were obtained by solving the Schrödinger equation based on the Nikiforov-Uvarov method, and the linear and nonlinear optical refractive index changes were calculated using the density matrix method and the iterative method. We have investigated the modulation of the refractive index changes by the depth of the confining potential, the parameters of the confining potential, and the incident light intensity of the quantum ring and have shown by numerical calculations that the change of different parameters has a significant effect on the refractive index changes of this quantum ring.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Phase Shift of KdV Soliton Associated with Collision Phenomena of Force KdV Solitons and Analysis of Time Fractional Ion-Acoustic Dusty Plasma Waves in the Earth’s Magnetosheath 与力KdV孤子碰撞现象相关的KdV孤子相移和地球磁鞘中时间分数离子声尘埃等离子体波的分析
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-19 DOI: 10.1007/s13538-025-01848-0
Umma Imon, Mohammad Shah Alam
{"title":"Phase Shift of KdV Soliton Associated with Collision Phenomena of Force KdV Solitons and Analysis of Time Fractional Ion-Acoustic Dusty Plasma Waves in the Earth’s Magnetosheath","authors":"Umma Imon,&nbsp;Mohammad Shah Alam","doi":"10.1007/s13538-025-01848-0","DOIUrl":"10.1007/s13538-025-01848-0","url":null,"abstract":"<div><p>Magnetized three-component dusty plasma consisting of inertial ions and two electron populations at different temperatures obeying a kappa distribution is used to investigate the phase shifts of the Korteweg-de Vries (KdV) solitons, collision phenomena, and formation of force KdV (FKdV) solitons in the presence of an external periodic force and the time fractional (TF) KdV (TFKdV) solitons of first- and second-order approximate, as well as the formation of electric field structures in the Earth’s magnetosheath region. The KdV phase shifts due to the head-on collision of ion-acoustic waves (IAWs) are derived using the extended Poincaré-Lighthill-Kuo (ePLK) technique. The KdV equation is subsequently converted into a TFKdV equation by following the process of El-Wakil et al. (El-Wakil S A, Abulwafa E M, Zahran M A, Mahmoud A A. Nonlinear Dyn 2011; 65: 55) for right-traveling IAWs. By adding a source term with strength to the KdV equation, the FKdV equation is determined for right-traveling IAWs. Due to the effects of the relevant parameters in the mentioned environment, compressive (hump-shaped) and rarefactive (dip-shaped) FKdV solitons are formed, together with positive and negative phase shifts. Here, only a positive phase shift is studied. The FKdV ion-acoustic solitons follow the superposition principle in the collision processes. The rarefactive and compressive (dip-shaped and hump-shaped) electric field structures are produced due to the effects of traveling wave velocity and the TF parameter.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145144089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modulated Nonlinear Electron Acoustic Wave Structures in Superthermal Dissipative Plasmas 超热耗散等离子体中的调制非线性电子声波结构
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-15 DOI: 10.1007/s13538-025-01852-4
Prasenjit Singha, Biswajit Sahu
{"title":"Modulated Nonlinear Electron Acoustic Wave Structures in Superthermal Dissipative Plasmas","authors":"Prasenjit Singha,&nbsp;Biswajit Sahu","doi":"10.1007/s13538-025-01852-4","DOIUrl":"10.1007/s13538-025-01852-4","url":null,"abstract":"<div><p>Theoretical investigation has been made to study the formation and dynamics of modulated nonlinear electron acoustic wave (EAW) structures in superthermal dissipative unmagnetized plasmas by deriving the damped nonlinear Schrödinger equation (NLSE) with the help of the standard perturbation technique. Analytical and numerical investigations explore the dynamics of bright and dark solitons, as well as breather-type solutions. The modulational instability (MI) of EAWs is analyzed, revealing the conditions under which instability occurs and how it influences the formation of localized wave structures such as bright solitons, dark solitons, and breathers under various physical regimes. We examine the role of plasma parameters, including the hot electron superthermality, hot-to-cold electron density ratio, collision frequency, in modifying the characteristics of the instability and the nonlinear wave modes. These findings may provide new insights into the behavior of EAWs in space and laboratory plasmas, where superthermal distributions and collisions are prevalent, and suggest potential applications in plasma physics, and other areas where similar wave phenomena arise.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sb2O3, Sb2O5, and Sb-doped Based Resistive Gas Sensors: A Review Sb2O3、Sb2O5和sb掺杂基电阻式气体传感器的研究进展
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-14 DOI: 10.1007/s13538-025-01850-6
Mokhtar Hjiri, Ramzi Dhahri, Fatemah M. Barakat, Giovanni Neri
{"title":"Sb2O3, Sb2O5, and Sb-doped Based Resistive Gas Sensors: A Review","authors":"Mokhtar Hjiri,&nbsp;Ramzi Dhahri,&nbsp;Fatemah M. Barakat,&nbsp;Giovanni Neri","doi":"10.1007/s13538-025-01850-6","DOIUrl":"10.1007/s13538-025-01850-6","url":null,"abstract":"<div><p>Sb<sub>2</sub>O<sub>3</sub> and Sb<sub>2</sub>O<sub>5</sub> are semiconducting metal oxides which have been used for gas sensing purposes in pristine, decorated, and composite forms. Furthermore, Sb as dopant can be used as substitution element in various metal oxides, where creation of oxygen vacancies and lattice distortion, along with limitation of particle growth causes enhanced gas response. Herein, we have described the various aspects of sensing behavior of resistive sensors based on these materials in detail. Sb<sub>2</sub>O<sub>3</sub> with more stability has been more studied for gas sensing application relative to Sb<sub>2</sub>O<sub>5</sub>. Gas sensing temperature can be decreased to room-temperature using UV illumination or composite making with appropriate semiconducting materials such as conducting polymers. Sb as dopant can increased the conductivity and create oxygen vacancies inside of sensing material, hence increasing sensing performance. Details of sensing mechanism of Sb<sub>2</sub>O<sub>3</sub>, Sb<sub>2</sub>O<sub>5</sub>, and Sb-doped sensor are described and mainly related to the formation of Schottky barriers, heterojunctions, oxygen vacancies and increase of surface area.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Analysis of Lactodifucotetraose Using Molecular Docking and Dynamics Studies with Norovirus Capsid Protein 乳二糖四糖与诺如病毒衣壳蛋白分子对接及动力学研究
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-12 DOI: 10.1007/s13538-025-01849-z
B. Lalithamaheswari, C. Anu Radha
{"title":"An Analysis of Lactodifucotetraose Using Molecular Docking and Dynamics Studies with Norovirus Capsid Protein","authors":"B. Lalithamaheswari,&nbsp;C. Anu Radha","doi":"10.1007/s13538-025-01849-z","DOIUrl":"10.1007/s13538-025-01849-z","url":null,"abstract":"<div><p>A newborn’s “gold standard” nutritional supply is breastmilk, which provides primary energy since it contains oligosaccharides that resist enzyme hydrolysis within the upper digestive tract and are usually able to reach the colon. A key function of human milk oligosaccharides (HMOs) is to develop the immune system, prevent pathogenic infections, control the newborn gut microbiota, and function as prebiotics. Currently, Lactodifucotetraose (LDFT) HMO is simulated using molecular dynamics for 250 ns, and the prominent structural model is determined, with the data being deposited in the 3DSDSCAR database (www.3dsdscar.org). The LDFT models are docked with the <i>Norovirus</i> capsid protein, and the best docked model was simulated for 100-ns duration. Inter/intramolecular interactions enhance the LDFT complex structure’s stabilization and compact binding. Three binding modes were predicted using the binding free energy calculation. The complex structure deviation and fluctuation from the reference frame were analyzed. Overall analysis showed that the linear structure of LDFT can bind with NoVs in two modes. Hence, the binding efficacy of LDFT in two modes was effective due to its two fucose residues, which can bind as a hydrophobic cluster. The principal role of this LDFT HMO is to serve as an effective inhibitor of the <i>Norovirus</i> capsid protein.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relativistic Effects and Quantum Light-Matter Interaction-induced Security Vulnerabilities in Integrated Quantum Key Distribution System using Spheroidal Quantum Dots as Single-Photon Emitters 球体量子点作为单光子发射体集成量子密钥分配系统中的相对论效应和量子光物质相互作用诱导的安全漏洞
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-11 DOI: 10.1007/s13538-025-01828-4
Moses Udoisoh, Okpara Nathaniel
{"title":"Relativistic Effects and Quantum Light-Matter Interaction-induced Security Vulnerabilities in Integrated Quantum Key Distribution System using Spheroidal Quantum Dots as Single-Photon Emitters","authors":"Moses Udoisoh,&nbsp;Okpara Nathaniel","doi":"10.1007/s13538-025-01828-4","DOIUrl":"10.1007/s13538-025-01828-4","url":null,"abstract":"<div><p>This study investigates the impact of relativistic effects and light-matter interactions on quantum key distribution (QKD) security in satellite-based quantum communication systems. We use a spheroidal quantum dot (SQD) as a single-photon emitter integrated within a photonic waveguide in a relativistic quantum communication system, where both sender and receiver are in motion at velocities approaching a significant fraction of the speed of light. Our analysis employs a fully relativistic treatment of the SQD’s electronic structure, incorporating spin–orbit coupling. We examine the quantum bit error rate (QBER) under relativistic motion and various eavesdropping attack scenarios, including intercept-resend, cloning, and measurement device compromise attacks. Our findings indicate that relativistic effects introduce errors into the QKD system, modifying the polarization states of the transmitted photons. Our analysis reveals that relativistic effects induce a 12% decrease in secure key rate (SKR) at <i>v</i> /<i>c</i> = 0.5. Adversarial attacks further exacerbate SKR vulnerability, with the intercept-resend attack reducing SKR by 75%, the cloning attack by 40%, and the man-in-the-middle (MitM) attack by 95% at <i>v</i>/<i>c</i> = 0.8. Our simulations demonstrate that relativistic corrections and advanced cryptographic techniques are essential to ensure secure key transmission in satellite-based QKD networks.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hydrogen Bonding Studies in Aqueous Meso-erythritol Solutions Using Time Domain Reflectometry (TDR) Technique 用时域反射(TDR)技术研究中介赤藓糖醇水溶液中的氢键
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-11 DOI: 10.1007/s13538-025-01840-8
Shilpa S. Patange, Pallavi D. Hambarde, Aniket D. Bokhare, Nitin P. Garad, Ashok C. Kumbharkhane
{"title":"Hydrogen Bonding Studies in Aqueous Meso-erythritol Solutions Using Time Domain Reflectometry (TDR) Technique","authors":"Shilpa S. Patange,&nbsp;Pallavi D. Hambarde,&nbsp;Aniket D. Bokhare,&nbsp;Nitin P. Garad,&nbsp;Ashok C. Kumbharkhane","doi":"10.1007/s13538-025-01840-8","DOIUrl":"10.1007/s13538-025-01840-8","url":null,"abstract":"<div><p>The complex permittivity has been determined for mixtures of meso-erythritol water with various concentrations by using time domain reflectometry (TDR). This study focuses on these attributes to investigate the dielectric relaxation and hydration dynamics of meso-erythritol-water mixtures using TDR across the frequency range of 10 MHz to 10 GHz. The static dielectric constant (<i>ε</i>₀) and relaxation time (<i>τ</i>) are analyzed for various volume fractions of water (<i>V</i><sub>water</sub>) at different temperatures. The study employs the Cole-Davidson model to understand the relaxation dynamics and Kirkwood-Frohlich correlation factors to elucidate hydrogen bonding contributions. The hydration number and thermodynamic parameters are computed to offer insights into meso-erythritol-water interactions. Results demonstrate that meso-erythritol concentration significantly impacts dielectric constants, relaxation times, and hydration properties, revealing complex solvation dynamics influenced by hydrogen bonding. The empirically obtained static dielectric constants exhibit a strong correlation with the theoretical predictions, thereby substantiating the validity of the Alenka Luzar hydrogen-bonding model within this framework. The meso-erythritol exhibits favorable chemical and physical properties due to its molecular structure and extensive hydrogen bonding capacity.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145142918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An Optimal Control Problem for a Monkeypox Transmission Model with Activity-Driven Contact Patterns 具有活动驱动接触模式的猴痘传播模型的最优控制问题
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-11 DOI: 10.1007/s13538-025-01844-4
Abdullah Hasan Hassan, Dipo Aldila, Muhamad Hifzhudin Noor Aziz, Putri Zahra Kamalia, Olumuyiwa James Peter
{"title":"An Optimal Control Problem for a Monkeypox Transmission Model with Activity-Driven Contact Patterns","authors":"Abdullah Hasan Hassan,&nbsp;Dipo Aldila,&nbsp;Muhamad Hifzhudin Noor Aziz,&nbsp;Putri Zahra Kamalia,&nbsp;Olumuyiwa James Peter","doi":"10.1007/s13538-025-01844-4","DOIUrl":"10.1007/s13538-025-01844-4","url":null,"abstract":"<div><p>The recent resurgence of Monkeypox (Mpox) necessitates the development of effective control strategies to manage its transmission. This study presents a comprehensive approach to modeling and controlling Mpox dynamics by incorporating human mobility into a deterministic framework. We begin by constructing a detailed model that integrates human mobility, providing a realistic depiction of the disease’s spread. Subsequently, we analyze the disease-free equilibrium and calculate the basic reproduction number, <span>(mathcal {R}_0)</span>. The study also formulates an optimal control problem, identifying the most effective strategies for mitigating Mpox spread through mobility, treatment, and animal control. We perform parameter estimation and model fitting to ensure the model’s accuracy and relevance to real-world data. A global sensitivity analysis using the Partial Rank Correlation Coefficient (PRCC) and hypercube sampling determines which parameters most significantly influence <span>(mathcal {R}_0)</span>. Numerical simulations show that a complete lockdown prevents transmission, whereas limiting all movement delays outbreaks but extends their length. Internal mobility control outperforms unconstrained movement, considerably reducing infection peaks. Treatment-only approaches reduce cases by about 50%, whereas animal control prevents outbreaks by lowering human exposure. The most effective technique involves movement restrictions, medication, and animal management, reducing peak infections by more than 90%. Sensitivity analysis demonstrates that transmission rates and mobility patterns have the most significant influence on disease spread. Our findings provide a robust framework for controlling Mpox transmission, focusing on the critical role of human mobility and providing practical information for public health interventions.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploring Modified Kaniadakis Entropy: MOND-Related Theory, the Bekenstein Bound Conjecture, and Hawking Evaporation Within the Landauer Principle 探索修正的Kaniadakis熵:mond相关理论,Bekenstein界猜想,以及朗道尔原理中的霍金蒸发
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-10 DOI: 10.1007/s13538-025-01842-6
Gabriella V. Ambrósio, Michelly S. Andrade, Paulo R. F. Alves, Cleber N. Costa, Jorge Ananias Neto, Ronaldo Thibes
{"title":"Exploring Modified Kaniadakis Entropy: MOND-Related Theory, the Bekenstein Bound Conjecture, and Hawking Evaporation Within the Landauer Principle","authors":"Gabriella V. Ambrósio,&nbsp;Michelly S. Andrade,&nbsp;Paulo R. F. Alves,&nbsp;Cleber N. Costa,&nbsp;Jorge Ananias Neto,&nbsp;Ronaldo Thibes","doi":"10.1007/s13538-025-01842-6","DOIUrl":"10.1007/s13538-025-01842-6","url":null,"abstract":"<div><p>We investigate the description of black hole thermodynamics in terms of a recently proposed modified version for Kaniadakis entropy. We discuss the role of that proposal within the Modified Newtonian Dynamics (MOND) theory, a generalization of Newton’s second law aimed at explaining galaxy rotation curves without resorting to dark matter. We posit a conjecture that the Kaniadakis entropy precisely describes the Bekenstein-Hawking black hole entropy. Furthermore, we consider the Bekenstein bound conjecture, which imposes an upper limit on the entropy of confined quantum systems. We analyze that conjecture in the context of the modified Kaniadakis entropy and find that it holds for typical values of <span>(kappa )</span>, as evidenced by our numerical investigation. Finally, using the Landauer principle from information theory, we derive an expression for mass loss in black hole evaporation. Our exploration underscores the potential relevance of a modified Kaniadakis statistics in understanding diverse physical phenomena, from gravitational systems to quantum mechanics, offering a promising direction for future research at the intersection among statistical mechanics and a continually increasing number of other important areas of physics.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Differentiation of Clay Content in Soil Samples Containing Clay, Silt, and Sand Using the Speckle Methodology 用斑点法区分含有粘土、淤泥和沙子的土壤样品中的粘土含量
IF 1.7 4区 物理与天体物理
Brazilian Journal of Physics Pub Date : 2025-07-09 DOI: 10.1007/s13538-025-01843-5
Sidney da Silva, Gustavo Faulin, Luis Zamariolli, Pedro Souza, Felipe Prado, Niklaus Wetter
{"title":"Differentiation of Clay Content in Soil Samples Containing Clay, Silt, and Sand Using the Speckle Methodology","authors":"Sidney da Silva,&nbsp;Gustavo Faulin,&nbsp;Luis Zamariolli,&nbsp;Pedro Souza,&nbsp;Felipe Prado,&nbsp;Niklaus Wetter","doi":"10.1007/s13538-025-01843-5","DOIUrl":"10.1007/s13538-025-01843-5","url":null,"abstract":"<div><p>This study aimed to assess the textural differences in soil samples with varying percentages of clay relative to sand content. Speckle interferometry by reflection technique was used, with the aid of polarizers to increase contrast. The method was based on elements of the Time History Speckle Pattern (THSP) and Error Theory. The data consisted of videos of static and dynamic interference patterns observed on the surfaces of the soil samples. These videos were then divided into frames to create THSP files, which formed the basis for constructing the graphs that present the average relative intensities of the interference patterns over time. Quantitative results revealed that samples with higher clay content presented higher mean relative intensities compared to samples with lower clay content. The uncertainties associated with these measurements were 3.6% for the more clayey sample and 4.1% for the less clayey sample. The percentage differences between the average relative intensities were (2.39 ± 0.36) × 10<sup>−1</sup> for the highest clay percentage sample and (3.39 ± 0.41) × 10<sup>−2</sup> for the lowest clay percentage sample.</p></div>","PeriodicalId":499,"journal":{"name":"Brazilian Journal of Physics","volume":"55 5","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145143012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信